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    std::towlower

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    <metanoindex/>

     
    C++
     
    Strings Bibliothek
    Null-terminierte Strings
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    Null-terminated strings
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    Byte-Strings
    Multibyte-Strings
    Wide Strings
    Classes
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    Classes
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    basic_string
    char_traits
     
    Nullterminierten Wide Strings
    Funktionen
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    Functions
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    Character Manipulation
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    Character manipulation
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    Umwandlungen in numerische Formate
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    Conversions to numeric formats
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    String-Manipulation
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    String manipulation
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    Array-Manipulation
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    Array manipulation
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    wmemcpy
    wmemmove
    wmemcmp
    wmemchr
    wmemset
     
    <tbody> </tbody>
    definiert in Header <cwctype>
    std::wint_t towlower( std::wint_t ch );
    Konvertiert das angegebene wide character in Kleinbuchstaben, wenn möglich .
    Original:
    Converts the given wide character to lowercase, if possible.
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    Parameter

    ch -
    breites Zeichen umgewandelt werden
    Original:
    wide character to be converted
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    Rückgabewert

    Kleinbuchstaben Version ch oder unmodifizierte ch wenn keine Kleinbuchstaben Version wird in der aktuellen C locale aufgeführt .
    Original:
    Lowercase version of ch or unmodified ch if no lowercase version is listed in the current C locale.
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    Notes

    Nur 1:1 Zeichenzuordnung kann durch diese Funktion durchgeführt werden, zB der griechische Großbuchstabe 'Σ' hat zwei Kleinbuchstaben Formen, abhängig von der Position in einem Wort: "σ" und "ς". Ein Aufruf std::towlower kann nicht verwendet werden, um die korrekte Kleinbuchstaben Form in diesem Fall zu erhalten .
    Original:
    Only 1:1 character mapping can be performed by this function, e.g. the Greek uppercase letter 'Σ' has two lowercase forms, depending on the position in a word: 'σ' and 'ς'. A call to std::towlower cannot be used to obtain the correct lowercase form in this case.
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    Beispiel

    #include <iostream>
#include <cwctype>
#include <clocale>

int main()
{
    wchar_t c = L'\u0190'; // Latin capital open E ('Ɛ')

    std::cout << std::hex << std::showbase;
    std::cout << "in the default locale, towlower(" << (std::wint_t)c << ") = "
              << std::towlower(c) << '\n';
    std::setlocale(LC_ALL, "en_US.utf8");
    std::cout << "in Unicode locale, towlower(" << (std::wint_t)c << ") = "
              << std::towlower(c) << '\n';
}

    Output: 

    in the default locale, towlower(0x190) = 0x190
in Unicode locale, towlower(0x190) = 0x25b

    Siehe auch
    wandelt eine weite Zeichen in Großbuchstaben
    Original:
    converts a wide character to uppercase
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    (Funktion) [edit]
    		converts a character to lowercase using the ctype facet of a locale
    (Funktions-Template) [edit]
    wandelt ein Zeichen in Kleinbuchstaben
    Original:
    converts a character to lowercase
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    (Funktion) [edit]
    C documentation for towlower